Peter Ayton on decisions

We make thousands of decisions every day, many of them unconscious and many of them less logical than we would like to believe. Peter Ayton, a psychologist at City University in London, studies human judgement and decision-making, and argues that we are often less rational than other animals. He talks to the Wellcome Trust's Daniel Glaser about how the human brain copes with making choices in a modern world flooded with options.